/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/GroupTopology.h
A Group is bounded by closed loops ofFGroupEdgeelements. AFGroupBoundaryis one such loop.
struct FGroupBoundary
bool
bIsOnBoundary
True if one or more edges in GroupEdges is on the mesh boundary
TArray< int >
GroupEdges
Ordered list of edges forming this boundary
TArray< int >
NeighbourGroupIDs
List of IDs of groups on the "other side" of this boundary (this GroupBoundary is owned by a particularFGroup)